An individual with achlorhydria (lack of or low gastric acid in stomach) may have abdominal pain due to difficulty digesting food, loose bowel movements & problems due to poor absorption of nutrients.
Foods for Good Digestion # 5: Sweet potatoes. Sweet potatoes, especially when consumed with their skins on, are a superb food for digestive health. They provide dietary fiber, complex carbohydrates and manganese. Sweet potatoes help in treating peptic ulcers, duodenal ulcers and some other serious bowel ailments.
1 Foods for Good Digestion # 6: Avocados This tiny fruit is loaded with fiber, and is one of the most fiber-rich fruits available. 2  This fruit is easy to digest and contains loads of healthy monounsaturated fats.